body{
    min-width: 320px;
    max-width: 750px;
    margin: 0 auto;//原无auto
    background-color: #f2f4f7;//0
}

#line{
    position:fixed;
    width:20rem;
    height:15rem;
    //width:50% 750px;2.33rem
    //height:80% 600px;
    top:10%;
    left:0%;
    background:#0;
}

@media screen and (min-width: 750px) {
    html {
        font-size: 37.5px !important;
    }
}

.warp {
    background-color: #fff;
    padding-bottom: 1.146667rem;
}

.header {
    height: 2.133333rem;
    border-bottom: 1px solid #eaeaea;
    text-align: center;
    line-height: 2.133333rem;
    font-size: 0.933333rem;
    color: #1c1c1c;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    padding: 1.2rem 0 1.6rem 0;
}

/* .nav .item {
    display: flex;
    width: 100%;
    flex-direction: column;
    align-items: center;
} */

.nav .con-hd {
    display: flex;
    justify-content: space-between;
    height: 1.013333rem;
    line-height: 1.013333rem;
    margin-bottom: 0.906667rem;
}

.nav .con-hd h4 {
    margin: 0;
    font-size: 0.746667rem;
    color: #333333;
    margin: 0 1rem 0 1rem;
}

.nav .con-hd h4 .icon {
    display: inline-block;
    width: 1.013333rem;
    height: 1.013333rem;
    vertical-align: middle;
}


/* .nav .item img {
    width: 3.5rem;
    height: 3.5rem;
    align-items: center;
} */

.nav .item span {
    font-size: large;
    color: black;
    padding: 0.5rem 0 0 0;
    margin-left: 10px;
    align-items: normal;
}

.nav .item:nth-child(-n + 5) {
    margin-bottom: 1.653333rem;
}

.go {
    margin: 0 0.266667rem 0 0.48rem;
}

.footer {
    //position: fixed;
    left: 0;
    bottom: 0;
    height: 2.933333rem;
    width: 100%;
    z-index: 99999;
    display: flex;
    padding: 0.533333rem;
    background-color: #fff;
    border-top: 1px solid #ccc;
}

.footer .item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer .item img {
    width: 1.04rem;
    height: 1.093333rem;
}

.footer .item p {
    font-size: 0.586667rem;
    color: #666666;
    margin-top: 0.266667rem;
}